european wind energy conference 2009 16 – 19 march, marseille, france fused acoustic emission...
TRANSCRIPT
![Page 1: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/1.jpg)
European Wind Energy Conference 2009
16 – 19 March, Marseille, France
Fused Acoustic Emission & Vibration
Techniques for Health Monitoring of
Wind Turbine Gearboxes and Bearings
D. J. Lekou, F. MouzakisCentre for Renewable Energy Sources
(CRES)A. A. Anastassopoulos, D.
KourousisEnvirocoustics S. A.
![Page 2: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/2.jpg)
European Wind Energy Conference 2009, Marseille, France 2
Drive Train
Main Shaft Gearbox High speed shaft Respective bearings
GeneratorRotor Hub
Main shaft
Bed PlateTorque Arm
GearboxBrake
Coupling
Main shaft bearing
![Page 3: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/3.jpg)
European Wind Energy Conference 2009, Marseille, France 3
Drive Train Component Failures
Roller Bearings Ring & Roller cracks Wearing, Spalling, Brinelling & Fluting
Gear Elements Tooth cracking, Micro-pitting Abrasion & Spalling
Shafts Cracks & Imbalances
![Page 4: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/4.jpg)
European Wind Energy Conference 2009, Marseille, France 4
Condition Monitoring
Vibration measurements Wind Turbine Operation Measurements
Complemented by: Oil analysis Debris monitoring Temperature monitoring Visual Inspections (incl. Bore-scope)
![Page 5: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/5.jpg)
European Wind Energy Conference 2009, Marseille, France 5
Vibration analysis - Classification
Low Frequency (0 – 20 kHz) Monitoring of total oscillatory motion FFT, Spectrum analysis
Medium Frequency (20 – 100 kHz) Detection of waves @ the speed of sound HFE, “Stress wave”, “Spike Energy”, etc.
High Frequency ( >100 kHz) Detection of transient elastic waves Acoustic Emission
![Page 6: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/6.jpg)
European Wind Energy Conference 2009, Marseille, France 6
Vibration analysis – Low Frequency
Low Frequency (0 – 20 kHz) Monitoring of total oscillatory motion FFT, Spectrum analysis
Medium Frequency (20 – 100 kHz) Detection of waves @ the speed of sound HFE, “Stress wave”, “Spike Energy”, etc.
High Frequency ( >100 kHz) Detection of transient elastic waves Acoustic Emission
![Page 7: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/7.jpg)
European Wind Energy Conference 2009, Marseille, France 7
Vibration analysis – Medium Frequency
Low Frequency (0 – 20 kHz) Monitoring of total oscillatory motion FFT, Spectrum analysis
Medium Frequency (20 – 100 kHz) Detection of waves @ the speed of sound HFE, “Stress wave”, “Spike Energy”, etc.
High Frequency ( >100 kHz) Detection of transient elastic waves Acoustic Emission
![Page 8: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/8.jpg)
European Wind Energy Conference 2009, Marseille, France 8
Vibration analysis – High Frequency
Low Frequency (0 – 20 kHz) Monitoring of total oscillatory motion FFT, Spectrum analysis
Medium Frequency (20 – 100 kHz) Detection of waves @ the speed of sound HFE, “Stress wave”, “Spike Energy”, etc.
High Frequency ( >100 kHz) Detection of transient elastic waves Acoustic Emission
![Page 9: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/9.jpg)
European Wind Energy Conference 2009, Marseille, France 9
Acoustic Emission
Detection of transient events Due to rapid release of energy Localized Source
![Page 10: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/10.jpg)
European Wind Energy Conference 2009, Marseille, France 10
Acoustic Emission Signal & Features
Continuous type Time-Driven Data
RMS ASL Absolute Energy
Burst type AE Hit Descriptors e.g.
Amplitude Counts Energy
![Page 11: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/11.jpg)
European Wind Energy Conference 2009, Marseille, France 11
Experimental Set-Up
Measuring Loads & Vibrations Wind Inflow parameters Wind Turbine Operational Parameters Mechanical Loads on Drive – Train Vibration & Displacement on Gearbox
Acoustic Emission System PAC PCI-2 18-bit A/D card CH1: R30a (100kHz – 400kHz) CH2: PICO (200kHz – 750kHz)
![Page 12: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/12.jpg)
European Wind Energy Conference 2009, Marseille, France 12
Experimental Set-up details
AE #1
ACCEL
ACCEL
18
17
19
1
2
3
4
5
6
8
7
HSS
![Page 13: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/13.jpg)
European Wind Energy Conference 2009, Marseille, France 13
Indicative Results – Simulated source
kHz
S
V
Magnit
ude
![Page 14: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/14.jpg)
European Wind Energy Conference 2009, Marseille, France 14
Indicative Results – Operational AE Hit
kHz
S
V
Magnit
ude
![Page 15: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/15.jpg)
European Wind Energy Conference 2009, Marseille, France 15
Indicative results – AE & Vibration
116.376 116.3765 116.377 116.3775 116.378
-0 .012
-0 .008
-0 .004
0
0.004
0.008
0.012
AE
CH
1 (V
)
T im e (s)
-1 .2
-0 .8
-0 .4
0
0.4
0.8
Acc
elar
atio
n (
V)
A cc #1
Acc #2
Acc #3
2ms
![Page 16: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/16.jpg)
European Wind Energy Conference 2009, Marseille, France 16
Indicative Results – Time-driven data
Time (s)
Abso
lute
Energ
yA
SL
Pow
er
(kW
)
![Page 17: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/17.jpg)
European Wind Energy Conference 2009, Marseille, France 17
Indicative results – e.g. ASL vs POWER
-200 0 200 400 600 800 1000Pow er (kW )
0
4
8
12
16
20
24
28
32
36
40
44
48
52
56
60
64
68
AS
L (c
hann
el 1
)
-200 0 200 400 600 800 1000Pow er (kW )
0
4
8
12
16
20
24
28
32
36
40
44
48
52
56
60
64
68
AS
L (c
han
nel
2)
![Page 18: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/18.jpg)
European Wind Energy Conference 2009, Marseille, France 18
Conclusions - Discussion
Footprint of normal operation Capturing Time-driven data Capturing Transient events
Simulation of failure upper limit Different characteristics from “normal”
Both methods have limitations Combination of methods preferred
![Page 19: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/19.jpg)
European Wind Energy Conference 2009, Marseille, France 19
Future Work
Footprint of failures Introduction of failures Use of Pulser Simulator
Increase data base Application on other Wind Turbine Types
![Page 20: European Wind Energy Conference 2009 16 – 19 March, Marseille, France Fused Acoustic Emission & Vibration Techniques for Health Monitoring of Wind Turbine](https://reader036.vdocuments.us/reader036/viewer/2022062518/56649d885503460f94a6d926/html5/thumbnails/20.jpg)
European Wind Energy Conference 2009, Marseille, France 20
Thank you for your attention
Acknowledgements Partially supported by the European
Regional Development Fund and the Greek Secretariat for R & D through AKMON
Part of the work was performed within the EC co-funded project PROTEST (212825)